WAEC Physics 2015 Objective — Question 47
Question 47 of 50 from the West African Examinations Council (WAEC) Physics 2015 Objective paper, with the correct answer and a full explanation.
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Which of the following statements about a diode is correct?
- A. Reverse bias diodes have low resistance
- B. Forward bias diodes have high resistance
- C. Forward bias diodes produce high currentCorrect
- D. Forward bias diodes function as a result of heat
Explanation
In forward bias, a diode's depletion layer narrows, giving low resistance and allowing a high current to flow.
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